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TIL human jaws have been shrinking since the invention of farming, but have shrunk even faster in the past couple of centuries due to people eating softer food and spending more time indoors.

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xm8D TIL that the longest mathematical proof is 15000 pages long, involved more than 100 mathematicians and took 30 years just to complete it.
VLW4 TIL police departments have fake mobile towers, often called a “Stingray”. These devices act as a fake cell tower, which tricks nearby phones into connecting to it and feeding data to the police.
WJ4X TIL there are four sunken nuclear submarines at the bottom of the Atlantic Ocean. One, located near Bermuda, holds sixteen live nuclear warheads.
bD44 TIL Robert Englund (aka Freddy Krueger) tried and failed to land the role of Luke Skywalker … so he told his friend Mark Hamill to take a shot at it
Y7Ax TIL that laying on your right side aggravates heartburn, and laying on your left can stop it.